Sorry to hear that your event was cancelled. After reading this I remembered that you mentioned that this event was the same day as the course being offered by Kevin O'Connor in the U.K. Perhaps you could make the most of this unfortunate turn of events and attend their course afterall? Here's info I pulled off of their website in case you might be interested:

Two days martial arts instruction with teachers of international recognition.

I'll definately try and get down there. I'm out on the piss friday night, so I may be a little fragile.
Alternatively, the Sunday has the open competition, so if they'll let me sign up for that on the door, I might give that a whirl...